Title :
A 25 dBm parallel class E power amplifier with minimal efficiency degradation under 10 dB back-off
Author :
Singhal, Nitesh ; Patel, Rishi ; Pamarti, Sudhakar
Author_Institution :
University of California Los Angeles, 90024, USA
Abstract :
This paper implements a Zero Voltage Switching (ZVS) Contour based power amplifier previously proposed theoretically by the authors. The proposed PA, implemented using discrete components on an FR4 PCB, achieves a peak power of 25dBm and a peak drain efficiency of 65% at about 6dB back-off from the peak output power at 100MHz from a 3V supply. The ZVS Contour PA achieves high efficiency for a 10dB back-off in output power by a simultaneous load and duty cycle modulation of a parallel class E PA.
Keywords :
Capacitance; Inductors; Modulation; Power amplifiers; Power generation; Switches; Zero voltage switching; PA; PAR; PMR; ZVS;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259534
